US11334204B2 - Touch component, touch apparatus, and touch-control method - Google Patents

Touch component, touch apparatus, and touch-control method Download PDF

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US11334204B2
US11334204B2 US16/658,158 US201916658158A US11334204B2 US 11334204 B2 US11334204 B2 US 11334204B2 US 201916658158 A US201916658158 A US 201916658158A US 11334204 B2 US11334204 B2 US 11334204B2
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touch
electrode
electrodes
intermediate electrode
sliding
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US20200089373A1 (en
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Shiyu Liu
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Goodix Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/163—Wearable computers, e.g. on a belt
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds

Definitions

  • the present disclosure relates to touch technologies, and in particular, to a touch component, a touch apparatus using the touch component, and a touch-control method applied to the touch apparatus.
  • a capacitive touch technology has significantly improved human-machine interaction.
  • conventional large-screen electronic devices such as mobile phones, tablet computers and laptops generally use the capacitive touch technology.
  • a market demand for small wearable electronic devices is growing rapidly, and a human-machine interaction technology can be still improved.
  • a current touch electrode pattern in small wearable electronic devices which has a relatively small quantity of channels to implement a touch operation, may merely implement a sliding operation in one direction and may not be applied to application scenarios such as sliding up or down, sliding left or right, and sliding around a circle.
  • a touch electrode pattern for conventional touch screens has an excessively large quantity of channels and driver chip pins, a large chip area, a high cost and high power consumption, so the touch electrode pattern for conventional touch screens is not suitable to be directly applied to the wearable device.
  • This problem may be improved by directly reducing the quantity of channels of the touch electrode pattern for conventional touch screens, however, in most cases, two layers of sensor electrodes or sensor electrodes with a bridging structure are needed, which leads to a complex manufacturing process and a relatively high cost, and a method for determining an operation is not optimized specifically for a situation of a relatively small quantity of channels of the touch electrode pattern for conventional touch screens, so that reducing the quantity of channels of the touch electrode pattern for conventional touch screens is not suitable to be directly applied to the wearable device. Therefore, how to flexibly satisfy touch requirements of wearable devices in a more economical way is an urgent problem to be solved for persons skilled in the art.
  • An objective of some embodiments of the present disclosure is to provide a touch component, a touch apparatus using the touch component, and a touch-control method applied to the touch apparatus, to provide a touch-control solution with a simple structure, a low cost and a flexible function for a wearable device.
  • Embodiments of the present disclosure provide a touch component, which is applied to a wearable device.
  • the touch component includes: M self-capacitive touch electrodes disposed on a single pattern wiring layer. Each of the touch electrodes is connected to a touch chip by a wire on the pattern wiring layer. M is a positive integer greater than 2 and less than 10.
  • the M touch electrodes form a touch sensing surface of the touch component.
  • the touch sensing surface has at least two sliding detection directions, the at least two sliding detection directions intersect, and a quantity of touch electrodes in each of the sliding detection directions is greater than 1.
  • Embodiments of the present disclosure further provide a touch apparatus which includes a touch chip and the above touch component.
  • Each of the touch electrodes of the touch component is electrically connected to the touch chip.
  • Embodiments of the present disclosure further provide a touch-control method applied to the wearable device.
  • the wearable device includes a touch chip and a touch component.
  • the touch component includes: M self-capacitive touch electrodes disposed on a single pattern wiring layer. Each of the touch electrodes is connected to a touch chip by a wire on the pattern wiring layer. M is a positive integer greater than 2 and less than 10.
  • the M touch electrodes form a touch sensing surface of the touch component.
  • the touch sensing surface has at least two sliding detection directions, the at least two sliding detection directions intersect, and a quantity of touch electrodes in each of the sliding detection directions is greater than 1.
  • the touch-control method includes: acquiring, by the touch component, a plurality of frames of touch data of a touch operation; obtaining touch position information of the touch operation by analyzing the plurality of frames of the touch data, where the touch position information includes at least one touch position, and a position of a touch electrode that has a largest self-capacitance variation value, which is greater than a preset touch threshold value, among the M touch electrodes that correspond to one frame of the touch data, is taken as one touch position of the touch operation; and determining a touch type of the touch operation according to the touch position information of the touch operation and a preset rule, where the touch type includes at least a sliding operation in each of the sliding detection directions.
  • M 5
  • One of the touch electrodes is an intermediate electrode located at a center of the touch sensing surface
  • the other four touch electrodes are peripheral electrodes located respectively on an upper side, a lower side, a left side and a right side of the intermediate electrode.
  • the intermediate electrode and the peripheral electrodes on the upper side and the lower side of the intermediate electrode form touch electrodes in a vertical sliding direction of the touch sensing surface
  • the intermediate electrode and the peripheral electrodes on the left side and the right side of the intermediate electrode form touch electrodes in a horizontal sliding direction of the touch sensing surface.
  • four peripheral electrodes have the same shape.
  • the intermediate electrode is in a shape of a square, each of the peripheral electrodes is in a shape of a rectangle, and a length of a longer side of the rectangle is equal to a side length of the square.
  • the intermediate electrode is in a shape of a circle, each of the peripheral electrodes is in a shape of an isosceles triangle with a vertex angle facing towards the circle, and the vertex angle, of the isosceles triangle, facing towards the circle is cut off by a concentric circle having a diameter greater than that of the circle.
  • the intermediate electrode is in a shape of a quadrangle with four inwardly curved arc-edges, and each of the peripheral electrodes is in a shape of an arch with an arc-edge facing towards the intermediate electrode.
  • M 4 4
  • the touch electrodes are arranged in a matrix of two rows and two columns.
  • M 3
  • the touch sensing surface has a sensing area in a shape of an isosceles triangle, and the touch electrodes are located respectively at vertexes of the isosceles triangle.
  • the touch component further includes a shield layer located below the pattern wiring layer.
  • the touch component further includes an insulating cover layer covering the pattern wiring layer.
  • an arrangement and sizes of the M touch electrodes satisfy the following requirement: when the touch chip uses a single driving mode, the touch electrodes have the same self-capacitance value; or when the touch chip uses an all driving mode, the touch electrodes have the same self-capacitance value.
  • determining a touch type of the touch operation according to the touch position information of the touch operation and a preset rule includes: determining the touch type of the touch operation is a long press if a touch position of the touch operation is not changed and a touch duration of the touch operation is longer than a first preset touch duration.
  • determining a touch type of the touch operation according to the touch position information of the touch operation and a preset rule includes: determining the touch type of the touch operation is a click if the touch duration of the touch operation is shorter than a second preset touch duration.
  • M 5
  • One of the touch electrodes is an intermediate electrode located at a center of the touch sensing surface, and the other four touch electrodes are: a upper electrode located on an upper side of the intermediate electrode; a lower electrode located on a lower side of the intermediate electrode; a left electrode located on a left side of the intermediate electrode; and a right electrode located on a right side of the intermediate electrode.
  • Determining a touch type of the touch operation according to the touch position information of the touch operation and a preset rule includes: determining the touch type of the touch operation is sliding up or down, when the touch position of the touch operation satisfies one of the following preset sliding orders: the touch position moves from the upper electrode to one or two neighboring ones of the left electrode, the intermediate electrode and the right electrode, and to the lower electrode; or the touch position moves from the lower electrode to one or two neighboring ones of the left electrode, the intermediate electrode and the right electrode, and to the upper electrode; or the touch position moves from the upper electrode to the intermediate electrode, and to the left electrode or the right electrode; or the touch position moves from the lower electrode to the intermediate electrode, and to the left electrode or the right electrode.
  • M 5
  • One of the touch electrodes is an intermediate electrode located at a center of the touch sensing surface, and the other four touch electrodes are: a upper electrode located on an upper side of the intermediate electrode; a lower electrode located on a lower side of the intermediate electrode; a left electrode located on a left side of the intermediate electrode; and a right electrode located on a right side of the intermediate electrode.
  • Determining a touch type of the touch operation according to the touch position information of the touch operation and a preset rule includes: determining the touch type of the touch operation is sliding left or right, when the touch position of the touch operation satisfies one of the following preset sliding orders: the touch position moves from the left electrode to one or two neighboring ones of the upper electrode, the intermediate electrode and the lower electrode, and to the right electrode; or the touch position moves from the right electrode to one or two neighboring ones of the upper electrode, the intermediate electrode and the lower electrode, and to the left electrode.
  • M 5
  • One of the touch electrodes is an intermediate electrode located at a center of the touch sensing surface, and the other four touch electrodes are: a upper electrode located on an upper side of the intermediate electrode; a lower electrode located on a lower side of the intermediate electrode; a left electrode located on a left side of the intermediate electrode; and a right electrode located on a right side of the intermediate electrode.
  • Determining a touch type of the touch operation according to the touch position information of the touch operation and a preset rule includes: determining the touch type of the touch operation is sliding around a circle, when the touch position of the touch operation satisfies the following preset sliding order: the touch position moves from one of the peripheral electrodes around the intermediate electrode to other three peripheral electrodes around the intermediate electrode clockwise or counter-clockwise.
  • Determining a touch type of the touch operation according to the touch position information of the touch operation and a preset rule includes: determining the touch type of the touch operation is sliding up or down, when the touch position of the touch operation satisfies one of the following preset sliding orders: the touch position moves initially from one of two upper touch electrodes directly to a touch electrode right below the touch electrode at an initial position, or directly to a touch electrode obliquely below the touch electrode at the initial position, or to a touch electrode obliquely below the touch electrode at the initial position through a touch electrode on a left or right side of the touch electrode at the initial position; or the touch position moves initially from one of two lower touch electrodes directly to a touch electrode right above the touch electrode at an initial position, or directly to a touch electrode obliquely above the touch electrode at the initial position, or to a touch electrode obliquely above the touch electrode at the initial position through
  • Determining a touch type of the touch operation according to the touch position information of the touch operation and a preset rule includes: determining the touch type of the touch operation is sliding left or right, when the touch position of the touch operation satisfies one of the following preset sliding orders: the touch position moves from a left electrode to a right electrode in any row of touch electrodes; or the touch position moves from a right electrode to a left electrode in any row of touch electrodes.
  • Determining a touch type of the touch operation according to the touch position information of the touch operation and a preset rule includes: determining the touch type of the touch operation is sliding around a circle, when the touch position of the touch operation satisfies the following preset sliding order: the touch position moves from any one of the touch electrodes to other three touch electrodes clockwise or counter-clockwise.
  • FIG. 1 is a schematic structural diagram of a touch component according to a first embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of an arrangement of touch electrodes of a touch component according to the first embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of an arrangement of touch electrodes of a touch component according to a third embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of an arrangement of touch electrodes of a touch component according to a fourth embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of an arrangement of touch electrodes of a touch component according to a fifth embodiment of the present disclosure.
  • FIG. 7 is a flowchart of a touch-control method according to a seventh embodiment of the present disclosure.
  • a first embodiment of the present disclosure relates to a touch component applied to a wearable device, which includes, but is not limited to, smart headphones.
  • the touch component includes: M self-capacitive touch electrodes (Cs 1 to Csm) disposed on a single pattern wiring layer 10 .
  • Each of the touch electrodes 101 is connected to a touch chip by a wire on the pattern wiring layer 10 .
  • M is a positive integer greater than 2 and less than 10.
  • the quantity M of the touch electrodes in the touch component may be any number of 3 to 9.
  • the M touch electrodes (Cs 1 to Csm) form a touch sensing surface of the touch component.
  • the touch sensing surface has at least two sliding detection directions, the at least two sliding detection directions intersect, and a quantity of touch electrodes in each of the sliding detection directions is greater than 1.
  • two sliding directions that intersect may respectively be a horizontal sliding direction and a vertical sliding direction, that is, the two sliding directions intersect vertically.
  • the two sliding directions may not intersect vertically. It is not limited herein.
  • the touch sensing surface can provide sensing ability for two or more touch positions in each sliding direction, and two or more sliding directions, such as sliding up or down, sliding left or right, and the like, may be recognized on the touch sensing surface.
  • Relatively abundant touch functions such as sliding up or down to switch songs, sliding left or right to adjust volume, and the like, may be provided by recognizing more than two sliding directions, but it is not limited herein.
  • the touch electrodes (Cs 1 to Csm) in this embodiment are all self-capacitive touch electrodes with a small quantity of channels and occupied pins of the touch chip, and high touch sensitivity. Therefore, this embodiment may provide a touch-control solution with a simple structure, a low cost and a flexible function for a wearable device, such as headphones and the like, to satisfy touch requirements of small electronic devices.
  • the touch component may further include an insulating cover layer 11 covering the pattern wiring layer 10 .
  • the pattern wiring layer 10 may be pasted to a lower surface of the insulating cover layer 11 by an adhesive (not shown), and an upper surface of the insulating cover layer 11 provides a finger touching surface.
  • the touch component may further include a shield layer 12 disposed below the pattern wiring layer 10 .
  • a ground metal layer may be used as the shield layer 12 to block electromagnetic interference from an external environment.
  • a shield layer may not be provided, and it is not limited herein.
  • the touch component in this embodiment may be implemented by the printed circuit board technology.
  • the touch component may be made into a flexible printed circuit (FPC) board, or a printed circuit board (PCB).
  • the pattern wiring layer, the insulating cover layer, the shield layer and the like may form each layer of the circuit board.
  • the touch component in this embodiment has 5 touch electrodes, Cs 1 to Cs 5 respectively.
  • One of the touch electrodes Cs 2 is an intermediate electrode located at a center of the touch sensing surface, and the other four touch electrodes are peripheral electrodes located respectively on an upper side, a lower side, a left side and a right side of the intermediate electrode Cs 2 , that is, a upper electrode Cs 5 located on an upper side of the intermediate electrode Cs 2 , a lower electrode Cs 4 located on a lower side of the intermediate electrode Cs 2 , a left electrode Cs 1 located on a left side of the intermediate electrode Cs 2 , and a right electrode Cs 3 located on a right side of the intermediate electrode Cs 2 .
  • peripheral electrodes of the intermediate electrode Cs 2 may have different shapes. Specifically, with respect to 5 touch electrodes in this embodiment, the intermediate electrode Cs 2 is in a square shape, each of the peripheral electrodes is in a rectangle shape, and a length of a longer side of the rectangle is equal to a side length of the square. A specific gap is preset between each two neighboring ones of the touch electrodes, and the intermediate electrode may be connected to a touch chip by a wire in the gap. It should be understood that a size of each of the touch electrodes Cs 1 to Cs 5 and a distance between each two neighboring ones of the touch electrodes Cs 1 to Cs 5 may be adjusted according to application requirements and actual situations.
  • each touch electrode is connected to a pin of the touch chip by a wire directly formed on the electrode pattern layer, so that a self-capacitance value of each of the touch electrodes Cs 1 to Cs 5 may be detected by the touch chip.
  • a self-capacitance value of a corresponding touch electrode is increased, and a touch position is determined by detecting a position of the touch electrode with the increased self-capacitance value.
  • touch information may be detected by using a single driving mode, that is, other touch electrodes may be connected to ground when a self-capacitance value of a particular touch electrode is detected.
  • the touch component having 5 touch electrodes may implement touch operations, such as a click, a long press, sliding up or down, sliding left or right, sliding around a circle.
  • touch operations such as a click, a long press, sliding up or down, sliding left or right, sliding around a circle.
  • a touch threshold value is preset, that is, a self-capacitance variation threshold value of a touch electrode is preset.
  • the touch electrode is determined to be touched by a finger if an actual self-capacitance variation value of the touch electrode is greater than the preset touch threshold value; or the touch electrode is determined not to be touched by a finger if an actual self-capacitance variation value is less than or equal to the preset touch threshold value.
  • a touch electrode having a largest self-capacitance variation value among touch electrodes that are touched by the finger is determined to be an “action electrode”.
  • the action electrode may be a touch electrode, or a plurality of touch electrodes.
  • step S 3 whether the action electrode changes is determined (that is, whether a touch position changes is determined). If the action electrode has been determined to be in a “touched” state and the touch position of the action electrode has not changed at a few time points subsequently, a current touch operation is determined to be a long press operation. In other words, if a touch position of the touch operation has not changed and a touch duration of the touch operation is longer than a first preset touch duration, a touch type of the touch operation is determined to be a long press.
  • the touch operation may have one or more touch durations.
  • One touch duration is a duration between a time point of a first action electrode and that of a last action electrode, and different action electrodes corresponds to different sampling time points respectively.
  • the touch type of the touch operation is determined to be a click operation.
  • a single click, a double click, a triple click or the like may further be determined according to click times. If the position of the action electrode changes, and a time interval exists during the change, that is, an “untouched” state exists at a few sampling time points during the change, the touch type of the touch operation is determined to be a click operation.
  • a double click, a triple click or the like may also be determined according to the click times. In other words, if the touch duration of the touch operation is shorter than a second preset touch duration, the touch type of the touch operation is determined to be a click.
  • a touch operation may include a plurality of touch durations. When there is only one touch duration, it may be determined to be a click. When there are a plurality of touch durations, each of the touch duration is shorter than a second preset touch duration, and an interval between each two neighboring ones of the touch durations is relatively small, the touch type of the touch operation may be determined to be multiple clicks. A double click, a triple click or the like may be determined according to the click times.
  • the first preset touch duration and the second preset touch duration may be set according to actual requirements, and this embodiment does not limit values of the first preset touch duration and the second preset touch duration.
  • the touch type of the touch operation is determined to be sliding up or down when the change of the position of the action electrode (that is, the touch position of the touch operation) satisfies one of the following preset sliding orders: the touch position (that is, the position of the action electrode) moves from the upper electrode Cs 5 to one or two neighboring ones of the left electrode Cs 1 , the intermediate electrode Cs 2 and the right electrode Cs 3 , and to the lower electrode Cs 4 ; or the touch position moves from the lower electrode Cs 4 to one or two neighboring ones of the left electrode Cs 1 , the intermediate electrode Cs 2 and the right electrode Cs 3 , and to the upper electrode Cs 5 ; or the touch position moves from the upper electrode Cs 5 to the intermediate electrode Cs 2 , and to the left electrode Cs 1 or the right electrode Cs 3 ; or the touch position moves from the lower Cs 4 to the intermediate electrode Cs 2 , and to the left electrode Cs 1 or the right electrode Cs 3 .
  • the upper electrode Cs 5 is used as an example of an initial action electrode, and a situation in which the lower electrode Cs 4 is used as the initial position may be deduced by analogy.
  • the touch type of the touch operation is determined to be sliding up or down if the change of the position of the action electrode satisfies one of sliding orders (a), (b) and (c):
  • the touch type of the touch operation is determined to be sliding left or right when the change of the position of the action electrode satisfies one of the following preset sliding orders: the touch position moves from the left electrode Cs 1 to one or two neighboring ones of the upper electrode Cs 5 , the intermediate electrode Cs 2 and the lower electrode Cs 4 , and to the right electrode Cs 3 ; or the touch position moves from the right electrode Cs 3 to one or two neighboring ones of the upper electrode Cs 5 , the intermediate electrode Cs 2 and the lower electrode Cs 4 , and to the left electrode Cs 1 .
  • the left electrode Cs 1 is used as an example of an initial action electrode, and a situation in which the right electrode Cs 3 is used as the initial position may be deduced by analogy.
  • the touch type of the touch operation is determined to be sliding left or right if the change of the position of the action electrode satisfies one of sliding orders (d) and (e):
  • the touch type of the touch operation is determined to be sliding around a circle when the change of the position of the action electrode satisfies the following preset sliding order: the touch position moves from one of the peripheral electrodes around the intermediate electrode Cs 2 to other three peripheral electrodes around the intermediate electrode Cs 2 clockwise or counter-clockwise.
  • the upper electrode Cs 5 is used as an example of an initial action electrode, and a situation in which one of the peripheral electrodes is used as the initial position may be deduced by analogy.
  • the touch type of the touch operation is determined to be sliding around a circle if the change of the position of the action electrode satisfies a sliding orders (e):
  • sizes of the touch electrodes and distances between two neighboring ones of the touch electrodes may be adjusted according to an actual situation, and a touch threshold value for a finger touch, a time interval for the change of the action electrode and determining an order for the sliding direction may also be adjusted according to an application requirement or an actual situation.
  • this embodiment may implement, by using 5 touch electrodes, a plurality of touch functions such as sliding up or down, sliding left or right, sliding around a circle, or the like. Due to a small quantity of the touch electrodes needed, a small quantity of the touch channels are needed by the touch electrodes and the touch chip have a quite small quantity of pins, a small area and low power consumption, thereby proving a touch solution extremely applicable for small portable or wearable devices.
  • a second embodiment of the present disclosure relates to a touch component.
  • a quantity, an arrangement and an operating principle of touch electrodes of the touch component, a connection manner between each of the touch electrodes and a touch chip, and a method for recognizing a touch type of a touch operation based on the touch electrodes in the second embodiment are the same as those in the first embodiment, and details are not described herein again.
  • a difference therebetween is shapes of the touch electrodes.
  • an intermediate electrode Cs 2 is in a shape of a circle
  • each of the peripheral electrode is in a shape of an isosceles triangle with a vertex angle facing towards the circle, and the vertex angle, of the isosceles triangle, facing towards the circle is cut off by a concentric circle having a diameter greater than that of the circle.
  • the 5 touch electrodes in this embodiment can be obtained as follows: an electrode pattern having a shape of a square is formed, a ring-shaped groove sharing the same center with the square is formed on the electrode pattern having the shape of the square, where a circle electrode pattern in an inner side of the ring-shaped groove is an intermediate electrode, and rectangle grooves with the same width are formed at an outer side of the ring-shaped groove and along the diagonal lines of the electrode pattern having the shape of the square so that 4 peripheral electrodes having the same shape and size are obtained.
  • a self-capacitance value (also referred to as a base capacitance value) of each of the touch electrodes (Cs 1 to Csm) of the touch component is influenced by an arrangement manner and a size of the touch electrodes, and a driving manner of a touch chip.
  • a single driving mode is applicable for the touch component in this embodiment. That is, sizes of the intermediate electrode Cs 2 and each of the peripheral electrodes are adjusted when each of the peripheral electrodes is arranged symmetrically around the intermediate electrode Cs 2 , for example, the size of the intermediate electrode Cs 2 is made slightly smaller than the size of each of the peripheral electrodes. In this way, each of the peripheral electrodes has the same self-capacitance value when the touch chip uses a single driving mode, thereby bringing convenience for designing a circuit of the touch chip.
  • the touch component shown in FIG. 3 may also be designed so that an all driving mode is applicable for the touch component.
  • the size of the intermediate electrode Cs 2 is made slightly bigger than the size of each of the peripheral electrodes so that each of the touch electrodes has the same self-capacitance value when the touch chip uses the all driving mode.
  • a size of each of the touch electrodes and a distance between each two neighboring ones of the touch electrodes may be adjusted according to an application requirement and an actual situation.
  • this embodiment may make, by adjusting the size of each of the touch electrodes, each of the touch electrodes have the same self-capacitance value when the touch chip uses the single driving mode, thereby reducing difficulty for designing the touch chip.
  • a third embodiment of the present disclosure relates to a touch component.
  • a quantity, an arrangement and an operating principle of touch electrodes of the touch component, a connection manner between each of the touch electrodes and a touch chip, and a method for recognizing a touch type of a touch operation based on the touch electrodes in the third embodiment are the same as those in the first embodiment, and details are not described herein again.
  • a difference therebetween is shapes of the touch electrodes.
  • the intermediate electrode Cs 2 is in a shape of a quadrangle with four inwardly curved arc-edges, and each of the peripheral electrodes is in a shape of an arch with an arc-edge facing towards the intermediate electrode Cs 2 .
  • the intermediate electrode Cs 2 may be obtained by cutting off peripheral portions of a square by using four circles.
  • a size of each of the touch electrodes is adjusted, for example, the size of the intermediate electrode Cs 2 is made slightly bigger than the size of each of the peripheral electrodes, so that each of the touch electrodes may have the same self-capacitance value when there is no finger touch, thereby bringing convenience for designing a circuit of the touch chip.
  • the touch component shown in FIG. 4 may also be designed so that a single driving mode is applicable for the touch component. That is, when the touch chip uses the single driving mode, the size of the intermediate electrode Cs 2 is made slightly smaller than the size of each of the peripheral electrodes, so that each of the touch electrodes has the same self-capacitance value.
  • a size of each of the touch electrodes and a distance between each two neighboring ones of the touch electrodes may be adjusted according to an application requirement and an actual situation.
  • this embodiment may make, by adjusting the size of each of the touch electrodes, each of the touch electrodes have the same self-capacitance value when the touch chip uses the all driving mode, thereby reducing difficulty designing for the touch chip.
  • a fourth embodiment of the present disclosure relates to a touch component.
  • An operating principle of touch electrodes and a connection manner between each of the touch electrodes and a touch chip are the same as those in the above embodiments, and details are not described herein again.
  • a main difference between this embodiment and each of the above embodiments is that a quantity of the touch electrodes is four, and touch functions, such as sliding up or down, sliding left or right, sliding around a circle, and the like, are implemented based on the four touch electrodes.
  • the 4 touch electrodes in this embodiment are arranged in a matrix of two rows and two columns.
  • the 4 touch electrodes are respectively Cs 1 at a first row and a first column, Cs 2 at the first row and a second column, Cs 3 at a second row and the first column, and Cs 4 at the second row and the second column.
  • each of the touch electrodes is in a shape of a square, but it is not limited thereto herein.
  • Each of the touch electrodes may alternatively use a shape of a rectangle, a circle, a rhombus, a star or the like.
  • the touch component in this embodiment may implement operations such as a click, a long press, sliding up or down, sliding left or right, sliding around a circle and the like. Determining manners for touch types, such as a click and a long press, are similar to those of 5 touch electrodes, and details are not described herein again. Determining manners for determining touch types, such as sliding up or down, sliding left or right and sliding around a circle, are as follows.
  • the touch type of the touch operation is determined to be sliding up or down, when a change of a position of an action electrode satisfies one of the following preset sliding orders:
  • the touch position moves initially from one of two upper touch electrodes directly to a touch electrode right below the touch electrode at an initial position, or directly to a touch electrode obliquely below the touch electrode at the initial position, or to a touch electrode obliquely below the touch electrode at the initial position through a touch electrode on a left or right side of the touch electrode at the initial position; or the touch position moves initially from one of two lower touch electrodes directly to a touch electrode right above the touch electrode at the initial position, or directly to a touch electrode obliquely above the touch electrode at the initial position, or to a touch electrode obliquely above the touch electrode at the initial position through a touch electrode on a left or right side of the touch electrode at the initial position.
  • Cs 1 and Cs 2 is used as an example of initial action electrode, and a situation in which one of the other electrodes is used as the initial position may be deduced by analogy.
  • the touch type of the touch operation is determined to be sliding up or down if the change of the position of the action electrode satisfies one of the following sliding orders:
  • the touch type of the touch operation is determined to be sliding left or right when the change of the position of the action electrode satisfies one of the following preset sliding orders:
  • the touch position moves from a left electrode to a right electrode; or the touch position moves from a right electrode to a left electrode.
  • the left electrode and the right electrode are in any row of touch electrodes.
  • Cs 1 and Cs 3 is used as an example of initial action electrodes, and a situation in which one of the other electrodes is used as the initial position may be deduced by analogy.
  • the touch type of the touch operation is determined to be sliding left or right if the change of the position of the action electrode satisfies the following sliding orders: Cs 1 -Cs 2 , or Cs 3 -Cs 4 .
  • Cs 1 is used as an example of the initial action electrode, and a situation in which one of the other electrodes is used as the initial position may be deduced by analogy.
  • the touch type of the touch operation is determined to be sliding around a circle if the change of the position of the action electrode satisfies the following sliding orders: Cs 1 -Cs 2 -Cs 4 -Cs 3 , or Cs 1 -Cs 3 -Cs 4 -Cs 2 .
  • the touch type of the touch operation is determined to be a click operation if the action electrode switches between two positions and the initial touch position is the final touch position.
  • Cs 1 is used as an example of the initial action electrode, and a situation in which one of the other electrodes is used as the initial position may be deduced by analogy.
  • the touch type of the touch operation is determined to be a click operation if the change of the position of the action electrode satisfies one of the following orders: Cs 1 -Cs 2 -Cs 1 , or Cs 1 -Cs 3 -Cs 1 , or Cs 1 -Cs 4 -Cs 1 . In this way, false triggers are avoided when a touch sensing surface is relatively small.
  • the touch component in this embodiment only need 4 channels to implement touch operations such as a click (including a single click, a double click, a triple click and the like), a long press, sliding up or down, sliding left or right, sliding around a circle and the like, and the touch chip needed has a small quantity of pins, a small area, low power consumption and a low cost. Therefore, the touch component has tremendous application value in wearable devices, and is suitable to be popularized widely.
  • a fifth embodiment of the present disclosure relates to a touch component.
  • An operating principle of touch electrodes and an connection manner between each of the touch electrodes and a touch chip are the same as those in the above embodiments, and details are not described herein again.
  • a main difference between this embodiment and each of the above embodiments is that a quantity of the touch electrodes is 3, and touch functions, such as a click, a long press, sliding up or down, sliding left or right, sliding around a circle, and the like, are implemented based on the 3 touch electrodes.
  • the touch component in this embodiment includes 3 touch electrodes Cs 1 to Cs 3 .
  • a touch sensing surface form by Cs 1 to Cs 3 has a sensing area in a shape of an isosceles triangle, and the touch electrodes are located respectively at vertexes of the isosceles triangle.
  • Cs 1 and Cs 2 are touch electrodes in a first sliding detection direction
  • Cs 1 and Cs 3 are touch electrodes in a second sliding detection direction.
  • the first sliding detection direction and the second sliding detection direction intersect in a vertical way or not in a vertical way.
  • the touch type of the touch operation is determined to be sliding in the first sliding direction when a position of an action electrode changes in an order of Cs 1 -Cs 2 .
  • the touch type of the touch operation is determined to be sliding in the second sliding direction when the position of the action electrode changes in an order of Cs 1 -Cs 3 .
  • the touch type of the touch operation is determined to be sliding around a circle when the position of the action electrode changes in an order, for example, Cs 1 -Cs 2 -Cs 3 . Determining manners for a click or a long press are similar to those in the above embodiments, and details are not described herein again.
  • a quantity of touch electrodes of the touch component may alternatively be 6, 7, 8 or 9.
  • the 9 touch electrodes may be arranged into three rows and three columns, but it is not limited thereto herein as long as touch operations in more sliding directions can be detected.
  • a sixth embodiment of the present disclosure relates to a touch apparatus including a touch chip and the touch component according to any one of the above embodiments.
  • Each of touch electrodes of the touch component is electrically connected to the touch chip respectively.
  • a specific structure of the touch component can refer to the above embodiments, and details are not described herein again.
  • touch operations such as a click (including a single click, a double click, a triple click and the like), a long press, sliding up or down, sliding left or right, sliding around a circle and the like, are implemented based on quite a few channels, for example, 4 or 5, and the touch chip needed has a small quantity of pins, a small area, low power consumption and a low cost. Therefore, the touch apparatus has tremendous application value in wearable devices, and is suitable to be popularized widely.
  • a seventh embodiment of the present disclosure relates to a touch-control method, which is applied to a wearable device such as headphones.
  • the wearable device includes a touch apparatus according to any one of the above embodiments.
  • a specific structure of the touch component can refer to the above embodiments, and details are not described herein again.
  • the touch-control method in this embodiment includes steps 701 to 703 .
  • a plurality of frames of touch data of a touch operation is acquired by a touch component.
  • touch position information of the touch operation is obtained by analyzing the plurality of frames of touch data.
  • the touch position information includes at least one touch position, and a position of a touch electrode that has a largest self-capacitance variation value, which is greater than a preset touch threshold value, among the M touch electrodes that correspond to one frame of the touch data, is taken as one touch position of the touch operation.
  • a touch type of the touch operation is determined according to the touch position information of the touch operation and a preset rule.
  • the touch type may include: a click (including a single click, a double click, a triple click and the like), a long press, sliding up or down, sliding left or right, sliding around a circle and the like.
  • the touch type includes the touch operations in at least two sliding detection directions.
  • a quantity of the touch electrodes is merely 5
  • a method for recognizing the touch type in the first embodiment may be used, and details are not described herein again.
  • a method for recognizing the touch type in the fourth embodiment may be used, and details are not described herein again.
  • touch operations such as a click (including a single click, a double click, a triple click and the like), a long press, sliding up or down, sliding left or right, sliding around a circle and the like, are implemented based on 4 or 5 channels, and the touch chip needed has a small quantity of pins, a small area, low power consumption and a low cost. Therefore, the touch apparatus has tremendous application value in wearable devices, and is suitable to be popularized widely.

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